Very Computer

Hi,
I have some trouble with $cwd.
I was trying to write a script that make use of the $cwd.
When I type in the command echo $cwd under unix prompt, it gives me
the correct path.  However when I wrote a simple script like this:
        #!/bin/csh
        echo $cwd
which is executed under the same path, it prints out something different.
and that path doesn't even exists.  However, this happens only to me but
not other users and it only happens under some specific path.
What things can leads to this $cwd behavior when printed out under unix
prompt and from script?
Thanks...
                                        ernest
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